Ger’s brothers Wayne, 35, John, 30, and Dessie, 29, are all currently behind bars for a range of criminal offences.

Last year, John Dundon was found guilty of the 2008 murder of innocent rugby player Shane Geoghegan and sentenced to life imprisonment by the non-jury Special Criminal Court.

This week his solicitor John Devane claimed that he would be seeking a review of the conviction following the revelations that calls to and from garda stations were being recorded.

Eldest brother Wayne is serving a six-year sentence for threatening to kill two brothers of Ger’s ex-girlfriend April Collins and is also awaiting trial for the murder of Roy Collins at the Special Criminal Court.

Dessie Dundon is serving a life sentence for the 2003 murder of rival gangster Kieran Keane.

Ger is believed to be living with the fifth brother Kenneth Jnr in London. Kenneth is not involved in crime.

Only sister Annabell, 22, is also believed to be in London and there is currently a warrant out for her arrest.

She was charged with threatening to kill April Collins outside a house in the village of Murroe, Co. Limerick, on April 9, 2011.

April Collins – who acted as State witness in a trial against Wayne and John Dundon last year – is the former partner of Ger and the couple have three children.